linux/include/asm-xtensa/cacheasm.h
Chris Zankel 173d668138 [PATCH] xtensa: remove extra header files
The Xtensa port contained many header files that were never needed.  This
rather lengthy patch removes all those files.  Unfortunately, there were
many dependencies that needed to be updated, so this patch touches quite a
few source files.

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10 09:55:39 -08:00

178 lines
3.2 KiB
C

/*
* include/asm-xtensa/cacheasm.h
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2006 Tensilica Inc.
*/
#include <asm/cache.h>
#include <asm/asmmacro.h>
#include <linux/stringify.h>
/*
* Define cache functions as macros here so that they can be used
* by the kernel and boot loader. We should consider moving them to a
* library that can be linked by both.
*
* Locking
*
* ___unlock_dcache_all
* ___unlock_icache_all
*
* Flush and invaldating
*
* ___flush_invalidate_dcache_{all|range|page}
* ___flush_dcache_{all|range|page}
* ___invalidate_dcache_{all|range|page}
* ___invalidate_icache_{all|range|page}
*
*/
.macro __loop_cache_all ar at insn size line_width
movi \ar, 0
__loopi \ar, \at, \size, (4 << (\line_width))
\insn \ar, 0 << (\line_width)
\insn \ar, 1 << (\line_width)
\insn \ar, 2 << (\line_width)
\insn \ar, 3 << (\line_width)
__endla \ar, \at, 4 << (\line_width)
.endm
.macro __loop_cache_range ar as at insn line_width
extui \at, \ar, 0, \line_width
add \as, \as, \at
__loops \ar, \as, \at, \line_width
\insn \ar, 0
__endla \ar, \at, (1 << (\line_width))
.endm
.macro __loop_cache_page ar at insn line_width
__loopi \ar, \at, PAGE_SIZE, 4 << (\line_width)
\insn \ar, 0 << (\line_width)
\insn \ar, 1 << (\line_width)
\insn \ar, 2 << (\line_width)
\insn \ar, 3 << (\line_width)
__endla \ar, \at, 4 << (\line_width)
.endm
#if XCHAL_DCACHE_LINE_LOCKABLE
.macro ___unlock_dcache_all ar at
__loop_cache_all \ar \at diu XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH
.endm
#endif
#if XCHAL_ICACHE_LINE_LOCKABLE
.macro ___unlock_icache_all ar at
__loop_cache_all \ar \at iiu XCHAL_ICACHE_SIZE XCHAL_ICACHE_LINEWIDTH
.endm
#endif
.macro ___flush_invalidate_dcache_all ar at
__loop_cache_all \ar \at diwbi XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH
.endm
.macro ___flush_dcache_all ar at
__loop_cache_all \ar \at diwb XCHAL_DCACHE_SIZE XCHAL_DCACHE_LINEWIDTH
.endm
.macro ___invalidate_dcache_all ar at
__loop_cache_all \ar \at dii __stringify(DCACHE_WAY_SIZE) \
XCHAL_DCACHE_LINEWIDTH
.endm
.macro ___invalidate_icache_all ar at
__loop_cache_all \ar \at iii __stringify(ICACHE_WAY_SIZE) \
XCHAL_ICACHE_LINEWIDTH
.endm
.macro ___flush_invalidate_dcache_range ar as at
__loop_cache_range \ar \as \at dhwbi XCHAL_DCACHE_LINEWIDTH
.endm
.macro ___flush_dcache_range ar as at
__loop_cache_range \ar \as \at dhwb XCHAL_DCACHE_LINEWIDTH
.endm
.macro ___invalidate_dcache_range ar as at
__loop_cache_range \ar \as \at dhi XCHAL_DCACHE_LINEWIDTH
.endm
.macro ___invalidate_icache_range ar as at
__loop_cache_range \ar \as \at ihi XCHAL_ICACHE_LINEWIDTH
.endm
.macro ___flush_invalidate_dcache_page ar as
__loop_cache_page \ar \as dhwbi XCHAL_DCACHE_LINEWIDTH
.endm
.macro ___flush_dcache_page ar as
__loop_cache_page \ar \as dhwb XCHAL_DCACHE_LINEWIDTH
.endm
.macro ___invalidate_dcache_page ar as
__loop_cache_page \ar \as dhi XCHAL_DCACHE_LINEWIDTH
.endm
.macro ___invalidate_icache_page ar as
__loop_cache_page \ar \as ihi XCHAL_ICACHE_LINEWIDTH
.endm